Railroad-frog



(No Model.)

RAILROAD moen- Mar y l l UNITED STATES PATENT OFFICE.

ARTHUR J. MOXHAM, OF JOHNSTOVN, PENNSYLVANIA.

RAILROAD-FROG.

SPECIFICATION forming part of Letters Patent No. 338,181, dated March 16, 1886.

Application tiled October "I, 1885. Serial No. 179,208. (No modell To all whom, it may concern.-

Beit known that I, ARTHUR J. MOXHAM, of Johnstown, in the county of Cambria and State of Pennsylvania, have invented a new and useful Improvement in Railroad-Frogs, which invention or' improvement is fully set forth and illustrated in the following specification and accompanying drawings.

The object of this invention is to provide a lo form of frog, more particularly for street-car tracks, which shall be made of girder-rails capable of being connected together without checks, and of being connected by splice-bars to the rails which are used for the rest of the track.

The invention will first be hereinafter de-A scribed in detail, and then specifically set forth in the claim.

In the accompanying drawings, Figure l 2o shows the frog in plan. Fig. 2 is ahorizontal sectional plan showing the frog secured to chairs, the heads of the rails composing the frog being cut off, exposing the cut webs of the rails and chairs to view. Fig. 3 shows in 2 5 two views an end elevation of Fig. 1 at A B. Fig. 4. shows a vertical cross-section taken through the line a b of Fig. l. Fig. 5 shows a vertical cross-section taken through the line c d of Fig. l.

3o In said figures the several parts are indicated by letters, as follows:

The method of constructing this frog can best be understood by au explanation of the parts as illustratedin Figs. 2, 3, 4, and 5. rIhe 3,5 web w of the rail B B is shown in Fig. 2 in one continuous piece. The other frog-rail is therein shown composed of two pieces of rail, A A', whose webs w are bent into offsets, as shown at O O, which oisets are bolted, bythe 4o bolts l 2 3, together and to the web of the rail B B. Said offsets in the webs of the pieces of rail A A are given theproper angle to fit the inclination of the web of the rail B B, and also sufficient length to admit of the necessary number of bolts being used to impart suhicient strength and rigidity to the frog at the junction of the parts thus made.

The chairs d, to which the webs of the frog rails are secured, are composed of two angle pieces-one short piece and one long pieceriveted together below by rivets j', and to the Webs of the rails, through the longer anglepieces, by the rivets g. The webs of the chairs ci are shown in sectional plan inside the frograils at the end A B', Fig. 2, and outside said rails at the end A B of the same gure.

The respective ends of the frog may be conveniently connected to the main rails of the track by any suitable splice-bars or rail-joints used in ordinary practice. It will thus be seen that this frog can be made strong and durable with a minimum of material of girder construction,with but a small number of parts united by a minimum number' of bolts and rivets, and entirely devoid of chocks, sockets for bolts, or spacing-blocks, all together forming a neat, durable, and strong girder-frog structure.

This frog may be put together in the shop and shipped complete, ready for securing in track, or the chairs may be riveted to the webs of the several rails in the shop, and the central junction of the parts made and bolted together after shipment to the place of service in the track. 75

Having thus fully described my said improvement as of my invention, I claim- A frog forming a crossing for the wheels of railway-cars, composed of three rolled girder guard-rails having the webs of two of said 8C rails offset and directly secured together and to the third rail, near the apexes of said frogs, by bolts or rivets devoid of chocks or blocks, and said rails near their divergent ends secured to the main rails of the track, substantially as 85 and for the purposes set forth.

ARTHUR J. MOXHATWI.

lVitnesses:

EDGAR C. MOXHAM, A. MONTGOMERY. 

